Uses dual springs. Center to centers for passenger side are 4.80" and 5.45". Driver's side is 1.98" and 3.63"

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Details

Reviews (3)

Q & A (39)

What's in the Box

Info

You don't sacrifice quality for a low price - get both with a Flo-Tek aluminum cylinder head. This Chevy aluminum head is loaded with high end features like bronze valve guides, multi angle valve job, and 3/8" screw-in rocker studs with guideplates. This is a pre-1986 design small block Chevy cylinder head with a standard exhaust port design. Heads are sold each.

Head is sold individually

180cc intake runners

62cc exhaust runners

64cc combustion chambers

2.02" and 1.60" stainless steel valves

High performance springs for .550" lift

Compatible with most flat tappet camshafts

Five angle valve job

Bronze guides

Straight plug

3/8" screw-in studs and guide plates

Port for temperature probe

Works well with most flat tappet street cams

Flow Numbers:

Valve Lift .400" .500" .600"

Intake 206 237 244

Exhaust 165 177 187

Notes

Assembled heads have single valve springs (with flat wire inner damper) with a seat pressure of 130 lbs. For use with solid (mechanical) flat tappet or hydraulic flat tappet cams.

Great bang for the buck

Intake ports do not line up with gaskets

July 23, 2012

I have a set of these heads and the intake ports are off alignment wise,they do not match gaskets or intake ports,I had to port match mine to match the felpro gaskets,Its in the shape of an L where the ports dont match.I just got my engine running and it seems powerfull though.They relly need to fix this problem Though cant beat the price Bolt holes are not helicoiled either ,like my edelbrock ones were Good for the price

are hydraulic roller camshafts applicable with these heads?

are hydraulic roller camshafts applicable with these heads?

Answers

September 10, 2014

EricM

The valve springs on this head have 115 lbs of seat pressure and 240 lbs of open pressure with a maximum lift of .550". They work well with hydraulic flat tappet cams and some of the mild hydraulic roller cams. Compare these valve spring specs with the requirements of your camshaft to determine compatibility.

1 answers

Can I use a roller cam and roller lifters with these heads? (Descriptions says for use with solid flat or hydraulic flat tappet)

burger

August 21, 2014

Can I use a roller cam and roller lifters with these heads? (Descriptions says for use with solid flat or hydraulic flat tappet)

cam choise
If I use this cam and lifter kit number 282122144 what other requirements will need to be addressed along with this cam choice?

cam choise
If I use this cam and lifter kit number 282122144 what other requirements will need to be addressed along with this cam choice?

Answers

August 11, 2014

EricM

Cam 282122144 is a fairly radical cam and if running an automatic requires a 3500+ stall converter. To get the good out of that cam with a 3000-7000 rpm power band then you will need fairly deep rear end gears such as 4:10 to 4:56. With the rpm range and required gears that is not the typical street cam but more oriented for the drag strip.

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You don't sacrifice quality for a low price - get both with a Flo-Tek aluminum cylinder head. This Chevy aluminum head is loaded with high end features like bronze valve guides, Multi angle valve job, and 3/8" screw-in rocker studs with guideplates. These are a pre-1986 design small block Chevy cylinder head.

You don't sacrifice quality for a low price - get both with a of Flo-Tek aluminum cylinder head. This Chevy aluminum head is loaded with high end features like bronze valve guides and a multi angle valve job. These are a pre-1986 design small block Chevy cylinder head. Sold each.

4.166" bore gaskets can be used on 400 race engines with up to 4.155" max bore with minimal chamfer

When using aluminum heads, we recommend gaskets with soft copper wire rings (such as 344-1010). This ensures that the aluminum head is not "scarred" by the combustion seal. Shim style 344-1094 will also work well with aluminum heads.

Item Details

Designed for 1955-86 262-400 c.i.d. Chevrolet V8s, the award-winning RPM Air-Gap incorporates the same race-winning technology that's used on the Victor Series competition intakes. The air-gap design features an open air space that separates the runners from the hot engine oil resulting in a cooler, denser charge for more power.

Manifold features rear water outlets, two distributor clamp locations and nitrous bosses. Accepts all 1976 and later alternator and A/C brackets for the street. The heater outlet boss is angled for proper fit over the valve cover. The temp sensor boss clears all waternecks.

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